How long after he's been dewormed can he contract parasites again?

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How long after he's been dewormed can he contract parasites again?

This is a discussion on How long after he's been dewormed can he contract parasites again? within the Dog Health forums, part of the Keeping and Caring for Dogs category; I adopted Wendall about a month ago. He's around 2 years old and his papers say hound/retriever mix, but I think he's actually a pointer/retriever ...

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Old 07-20-2017, 01:33 PM
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Unhappy How long after he's been dewormed can he contract parasites again?

I adopted Wendall about a month ago. He's around 2 years old and his papers say hound/retriever mix, but I think he's actually a pointer/retriever mix.

About two weeks ago he started having diarrhea and vomited once. When the diarrhea worsened, I took him to the vet and he was put on fluids and given an antibiotic (I believe Metronidazole), a dewormer powder, and medicine for the nausea and diarrhea. As well as a prescription diet for four days. His symptoms cleared up within the next two days. The vet did not conduct a fecal testing.

From the beginning his stools were soft and a clay color, so I self diagnosed him with a sensitive stomach and needing to eat a food with less fat so I changed his food from Wellness Complete Health(what he was being given at the shelter) to Hill's Science Diet Sensitive Skin and Stomach.

After switching to the new food from his prescription diet his stools were a chocolate brown and the play-doh consistency that I've read all about over the internet.

These poops lasted for about a week, but this Tuesday (7/18) he did not poop in the morning, like usual, and that evening he pooped a clay colored "cow patty". I noticed extremely small, white specs, in the stool. I'm not 100% convinced they are from a parasite because that afternoon he had gone on a walk with my boyfriend and tried to eat something "white and crunchy."


It's now Thursday, and after speaking with the vet and doing more research she said it's possible it could be giardia or coccidia. I did not notice the specs in his stool yesterday although it seemed looser than on Tuesday. I have switched him to eating rice and boiled chicken, and a table spoon of pure pumpkin but am concerned that this might mask his symptoms if he has a more serious issue.

Could he even have a parasite if he was just given a dewormer and antibiotics? We did go to the public dog park on Sunday, which has a creek.
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Old 07-20-2017, 01:53 PM
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I should also mention that he is not acting like he is sick! He's only going once a day but is drinking a lot of water. He's also still extremely playful!
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Old 07-21-2017, 12:07 AM
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First of all, you cannot see Coccidia and Giardia, even as small specks.. .you need a strong microscope to see those protozoan parasites. They consist of single cells only. Secondly, no single dewormer will treat Coccidia, so even if you dewormed him a dozen times it would not affect the coccidia... those organisms are sensitive to different kinds of medications. Giardia MIGHT be decreased or even eliminated by the Metronidazole you are giving your puppy, but might not, either. You would only know of these two parasites by doing a thorough fecal exam by a veterinarian or a vet lab. And really you should have a lab check for all parasites as some may be harder to get than others, or may have reinfected you puppy even if treated once already.
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Old 07-21-2017, 04:52 AM
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I dropped off a stool sample at the vet last night after he passed a yellowly-gray greasey or mucusy I'm not sure loose stool. Should hear back today, but what could be wrong if it's not a parasite? The vet advised keeping him on a boiled chicken and rice and pumpkin diet until it firms up. When should I bring him back to the vet if it doesn't?
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Old 07-21-2017, 10:55 AM
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Once the Vet analysis has been done, he or she can best advise you as the best treatment and Vet frequency visit, plan to follow. Follow your Vets advice, and I'm sure he will be fine.
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Old 07-21-2017, 12:43 PM
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I just received news from the vet that his test came back negative for parasites. Now I need to figure out what is making him have these unhealthy stools! It's been four days now and they haven't firmed up which makes me think it wouldn't be something he ate. Any ideas?
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Old 07-21-2017, 03:00 PM
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Has your pup ever had bloodwork, xrays, or ultrasound diagnostics done? There's loads of different metabolic disorders that could cause BMs to be abnormal, beyond your average intestinal parasite. If you haven't done any baseline bloodwork or xrays, then I would start there as those are the most economical to rule things out or start steering you in the best direction to get a solid diagnosis. If those are normal than a full ultrasound and/or diarrhea panel may be beneficial. Those would be the first things worth considering, but depending on the results of those test or what your vet is seeing during their exam there are quite a number of other options to consider to try and figure out a diagnosis and treatment plan.
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Old 07-21-2017, 03:08 PM
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4 days isn't all that long. If the vet gave him the all clear and he's acting fine otherwise, he might just need more time on a bland diet until his digestive system has a chance to calm down and recover. Hope he feels better soon.
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Old 07-21-2017, 03:16 PM
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Thanks for your advice I will definitely look into getting these tests done! I rescued him about a month ago and am a first time dog owner, so perhaps I should have had him checked out really well when I first got him. Although, when he was at the vet for the first time, because of throwing up and blood in his watery diarrhea, they called to let me know they didn't know what was wrong with him and provided me with treatment to ease his symptoms. His symptoms this time around haven't gotten bad like before, but I asked them if they did a fecal test when he was there last and they had not, which I find questionable?

Any way, if his stool does not firm up by early next week, or if they do but the loose stool comes back I will bring him back to have these tests done!
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Old 07-24-2017, 08:43 AM
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**Update, Wendall's stool has firmed up and he is back to going twice a day. I have noticed that the stool has a film over it, I'm assuming mucous, is this normal? Is it his stomachs way of processing the pumpkin(1tbsp a day) I have been giving him?
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